Burner for the autogenous cutting of metals



Amigo w, 1924. 1,5053% H. W. C. SCHRODER BURNER FOR THE AUTOGENOUS CUTTING 'OF METALS Filed Aug. 18 1921 Patented Aug 19, 1924.

PATENT OFFICE.

HANS WILHELM CHRISTIAN sormonnn, or LuBEoK, GERMANY, AssiGNoe To ALEX- ANDER BERLNHARD nnfienn, or rrnxnnnnne, LUBE-CK, GERMANY.

Application filed. August 18, 1921. Serial No. 493,485.

- from the material to be cut and that the guiding supports or rollers occupy a suitable position. Hitherto there have been used for the adjustment of the distance, either a rigid stirrup, which being movably arranged can be adjusted in height on the head of the burner and is provided with two rollers and a slot for the purposes of lateral adjustment, or two side rods which can be pushed up and down on the head of the burner and each of which is furnished with a guide roller.

These known guiding carriages do not, however, enable the position of the guide rollers relatively to the burner and the work to be correctly adjusted in addition to the correct distancing of the nozzles from pieces of work of difi'erent kinds. Furthermore, the head of the burner in such instances must have a considerable height so that in the case of bevelled cuts or in the cutting of arched or hollow objects the stirrup can be adjusted upwards and downwards to a sulficient degree.

The above mentioned defects are obviated by the present invention which is illustrated in the accompanying drawing by various working examples and consists substantially in the use of a guiding carriage constituted by two, rolleror pin-supported arms, arranged and adapted to be rocked up and down and moved in the direction of the transverse axis of the carriage independently of each other with relation to the head of the burner.

\ Figure 1 shows an example of a construe tional form of a burner with a two-part guiding carriage seen from the side.

Figure 2 is a plan view of the front portion of the burner and the carriage.

Figure 3 shows the head of the burner with the carriage seen from the front.

Figures 5 d views T Figure 3 showing various positions which may be assumed by the parts with a burner according t-o the present invention.

The head a of the burner carries a rotatable rmg b (clamp or the like) with a radial bolt 0, and a set screw 0 This ring acts as carrier for the two halves of the stirrup or guiding arms d and d which are provlded with L-shapcd guiding slots 9 and g and with guide rollers e and 6 To make a vertical cut through a plate the. parts are set in the position shown in Figure 3. When cutting close to an edge or a narrow piece one arm or both can be so moved laterally in the slot that the wheels on which the stirrup runs are brought nearer to the mouthpiece. If sectioned pieces are to be cut longitudinally, the wheels also may be rocked upwards to different heights, or the curved or angularly bent portion of the slot may be used, in order to obtain the correct distance of the burner nozzle away from the cutting line.

In the case of bevelled cuts as shown in Figure l the angular course of the slots in the guiding arms is of advantage, as by this means the necessary vertical movement between the bolt 0 and the upper surface of the material is made possible, without setting the guide rollers obliquely.

Figures 5 and 6 show the mutual adjustment of the parts when cutting arched or hollow pieces of work. The guide rollers are in this case always set in such a position that they are directed radially or approximately radially with respect to the curvature of the work and consequently enable an efficient guiding action to be obtained.

It is therefore possible to cut. shafts of comparatively small diameter and tubes of comparatively small width. For the latter work a distinct advantage is accrued by the fact That the head of the burner may be very ment of the guiding arms, on the contrary the bolt 0 may if desired, be rigidlv mounted on the head of the burner. In like manner separate bolts such as 0 may be provided for each guiding arm.

In cases where the ring I) is employed, however, it will be appreciated that the direction of the transverse axis w-y of the carriage (see Fig. 2) will depend upon the It is not absolutely necessary that a special rotatable ring be provided for the attach position of the rin 6. Thus, if the ring 6 is rotated a little the transverse axis of the carriage may correspond to the position indicated by the line ar -11:

In order to enable the guiding arms to be more easil adjusted, in such a way that they shall not rop out of their position when the nut of the bolt 0 is unscrewed, it is convenient to insert a sprin between the guiding arm and the nut of the bolt or between the guiding arm and the surface where it comes into contact with the ring or the head of the burner.

Instead of the rollers e, 6 simple pins or supports may be used.

I claim:

1. In a burner for the autogenous cutting of metals, the combination of a burner head, a carrier rotatably mounted upon said head, a fastening device for fixing said carrier against rotation thereon, guiding members carried by said carrier and pivotally adjustable thereon independently of each other about an axis transverse to the rotative axis of said carriergsaid further adjustable toward and away from each other relatively to said carrier, and means, independent of said fastening device, for fixing said guiding members in position on said carrier.

2. In a burner for the autogenous cuttin of metals, the combination of a burner hea a guiding carriage connected with said head and comprising two arms provided with L- shaped s ots w ereby said arms are capable of being rocked u and down and moved in the direction of t e transverse axis of the carriage relatively to said burner head and guiding rollers journallcd on said arms.

HANS WILHELI CHRISTIAN SCHRGDER. Witnesses:

FELIX SCHWAIBLER, Crms. A.-H. L. Mrmmmnorr.

guiding members being 

